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    <script>
        var arr = [521, 545, 653, 12, 666, 2, 53, 36, 44123]


        function ab(a,b){
            return a-b;
        }  
        var op = ab(arr) 
        console.log(op)






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        //         if (arr[j] < arr[j + 1]) {
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        //             arr[j] = arr[j + 1];
        //             arr[j + 1] = tmp;
        //         }
        //     }
        // }
        
    </script>
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